You can create a dataview (context) on that page and then create a microflow which first creates or retrieves an object of that typen then in the microflow open the specific page. Then you can pass the object to the page.
Check out paragraph 3.3 point 4, https://docs.mendix.com/howto7/extensibility/charts-basic-create
It states: Create a new microflow named DS_NewValue to fill the data view.
So instead of passing the object you should create a Microflow datasource for the dataview. So the object will get created and does not need to be passed